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# this document describes my issue with a way to slow transfer speed
# between my sammy server with pppoe g.shdsl and an alix05 server with
# ppp hsdpa umts

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# two download tests, demonstrating that the alix05 server can download
# with 250KB/s (umts hsdpa 3g)
alix05:~# wget -cr http://ftp.nl.debian.org/debian/ls-lR.gz
FINISHED --2010-01-15 13:43:41--
Downloaded: 1 files, 6.5M in 39s (168 KB/s)
FINISHED --2010-01-15 13:44:54--
Downloaded: 1 files, 6.5M in 46s (143 KB/s)


# one upload test to the sammy server, demonstrating that the alix05
# server can upload with 60KB/s and that the sammy server can download
# with at least 60KB's (umts hsdpa 3g)
alix05:~# scp ftp.nl.debian.org/debian/ls-lR.gz root@sammy.somewhere.nl:/root/
100% 6607KB  61.2KB/s   01:48

# one upload from the sammy server to the ashley server, demonstrating
# that the sammy server can upload with 274KB/s. (g.shdsl)
sammy:~# scp /root/ls-lR.gz root@powercraft.nl:/root/
100% 6608KB   1.3MB/s   00:05

### THIS IS THE ISSUE, THE DOWNLOAD SPEED OF 17KB/s IS WAY TO LOW ###
# one download from sammy server to alix05 server that is going to slow
alix05:~# scp root@sammy.somewhere.nl:/root/ls-lR.gz ls-lR.gz
100% 6578KB  17.4KB/s   06:19

# control test, downloading from the ashley server to demonstrate that
# the alix05 is capable of download at least with 97KB/s with scp
alix05:~# scp root@powercraft.nl:/root/ls-lR.gz ls-lR.gz
100% 6608KB  88.1KB/s   01:15

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root@ashley:~# tcpdump port 22 and host 62.140.137.47 -i eth1 -w tcpdump-raw-ashley-eth1.txt
    from
alix05:~# scp root@powercraft.nl:/root/ls-lR.gz ls-lR.gz
    100% 6608KB  89.3KB/s   01:14

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sammy:~# tcpdump port 22 and host 62.140.137.47 -i eth5 -w tcpdump-raw-sammy-eth5.txt
    from
alix05:~# scp root@sammy.somewhere.nl:/root/ls-lR.gz ls-lR.g
    100% 6608KB  24.5KB/s   04:30

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# othertests:
# scp root@10.10.1.230:/root/ls-lR.gz ls-lR.g

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mv /root/tcpdump-ashley-eth1.txt /home/jelle/tcpdump-raw-ashley-eth1.txt
chown jelle:jelle /home/jelle/tcpdump-raw-ashley-eth1.txt
chmod 644 /home/jelle/tcpdump-raw-ashley-eth1.txt

scp --verbose /root/tcpdump-raw-sammy-eth5.txt root@powercraft.nl:/root/
# on ashley
mv /root/tcpdump-raw-sammy-eth5.txt /home/jelle/tcpdump-raw-sammy-eth5.txt
chown jelle:jelle /home/jelle/tcpdump-raw-sammy-eth5.txt
chmod 644 /home/jelle/tcpdump-raw-sammy-eth5.txt

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